Answer
What expression represents her age 7 years from now?
y =x+7x
Two years ago?
z=y-2x
Step-by-step explanation:
Answer:
Step-by-step explanation:
1 tyres time to install is 56/4=14
which means it takes 14 minutes to install one tire.
so 12 tires would be 12 x 14 which is 168 minutes
A) 168 minutes
1 tire = 14 min
42 min/14 min=3
B) 3 tires
Answer:
$441. 155
Step-by-step explanation:
You have to multiply $33.935 x 13.
--------------------------------------------------------------
33.935
x 13
----------------------
101805
+ 339350
----------------------
441.155
Answer:
Proportion of buildings in the city that have fire code violations: 10%
Uncertainty 0.3 = 30%
Step-by-step explanation:
This situation complies with a binomial model where p is the probability of finding a building having fire code violations and q=1-p
Since in random sample of 40 buildings chosen for inspection 4 of them are found to have fire code violations, the proportion is 4/40 = 0.1 or 10% and p=0.1 as well.
<em>In a</em> <em>binomial model the standard deviation s is:
</em>
<em>
</em>
<em>where n is the sample size</em>. So
and the uncertainty is the standard error SE
Answer:
the declaration is addressed to all mankind
Step-by-step explanation: